func TestRename(t *testing.T) {
var err error
flag.Parse()
ufs := new(ufs.Ufs)
ufs.Dotu = false
ufs.Id = "ufs"
ufs.Debuglevel = *debug
ufs.Msize = 8192
ufs.Start(ufs)
tmpDir, err := ioutil.TempDir("", "go9")
if err != nil {
t.Fatal("Can't create temp directory")
}
defer os.RemoveAll(tmpDir)
ufs.Root = tmpDir
t.Logf("ufs starting in %v", tmpDir)
// determined by build tags
//extraFuncs()
l, err := net.Listen("unix", "")
if err != nil {
t.Fatalf("Can not start listener: %v", err)
}
srvAddr := l.Addr().String()
t.Logf("Server is at %v", srvAddr)
go func() {
if err = ufs.StartListener(l); err != nil {
t.Fatalf("Can not start listener: %v", err)
}
}()
var conn net.Conn
if conn, err = net.Dial("unix", srvAddr); err != nil {
t.Fatalf("%v", err)
} else {
t.Logf("Got a conn, %v\n", conn)
}
clnt := NewClnt(conn, 8192, false)
user := p.OsUsers.Uid2User(os.Geteuid())
rootfid, err := clnt.Attach(nil, user, "/")
if err != nil {
t.Fatalf("%v", err)
}
t.Logf("attached to %v, rootfid %v\n", tmpDir, rootfid)
// OK, create a file behind go9ps back and then rename it.
b := make([]byte, 0)
from := path.Join(tmpDir, "a")
to := path.Join(tmpDir, "b")
if err = ioutil.WriteFile(from, b, 0666); err != nil {
t.Fatalf("%v", err)
}
f := clnt.FidAlloc()
if _, err = clnt.Walk(rootfid, f, []string{"a"}); err != nil {
t.Fatalf("%v", err)
}
t.Logf("Walked to a")
if _, err := clnt.Stat(f); err != nil {
t.Fatalf("%v", err)
}
if err := clnt.FSync(f); err != nil {
t.Fatalf("%v", err)
}
if err = clnt.Rename(f, "b"); err != nil {
t.Errorf("%v", err)
}
// the old one should be gone, and the new one should be there.
if _, err = ioutil.ReadFile(from); err == nil {
t.Errorf("ReadFile(%v): got nil, want err", from)
}
if _, err = ioutil.ReadFile(to); err != nil {
t.Errorf("ReadFile(%v): got %v, want nil", from, err)
}
// now try with an absolute path, which is supported on ufs servers.
// It's not guaranteed to work on all servers, but it is hugely useful
// on those that can do it -- which is almost all of them, save Plan 9
// of course.
from = to
if err = clnt.Rename(f, "c"); err != nil {
t.Errorf("%v", err)
}
// the old one should be gone, and the new one should be there.
if _, err = ioutil.ReadFile(from); err == nil {
t.Errorf("ReadFile(%v): got nil, want err", from)
}
to = path.Join(tmpDir, "c")
if _, err = ioutil.ReadFile(to); err != nil {
t.Errorf("ReadFile(%v): got %v, want nil", to, err)
}
// Make sure they can't walk out of the root.
from = to
if err = clnt.Rename(f, "../../../../d"); err != nil {
t.Errorf("%v", err)
}
// the old one should be gone, and the new one should be there.
if _, err = ioutil.ReadFile(from); err == nil {
t.Errorf("ReadFile(%v): got nil, want err", from)
}
to = path.Join(tmpDir, "d")
if _, err = ioutil.ReadFile(to); err != nil {
t.Errorf("ReadFile(%v): got %v, want nil", to, err)
}
}
